Heel-breasting machine



Patented ec. E8, 1923.

Lillie hair; sr rnr rt- THOMAS LUND, OF BEVERLY, MASSACHUSETTS, ASSIGNORTO UNITED SHOE IJIA- OHINEBY CORPORATION, OF IPAlERSON, NEW JERSEY, ACORPORATION OF NEW JERSEY.

HEEL-BREASTING MACHINE.

Application filed November 15, 1919. Serial No. 338,291.

To all whom it may com-em:

Be it known that I, THOMAS LUND, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain Improvements in Heel-Breasting Machines, of whichthe following description, in connection with the accompanying drawings,is a specification, like reference characters on the drawings indicatinglike parts in the several figures.

This invention relates to machines for making spring heel lifts and moreparticularly for beveling or wedge shaping the brfiast or straight edgeportions of such 1i s.

In spring heel shoes, the break of the heel inclines gradually from thetread surface of the heel and merges into the surface of the shank orbottom of the shoe in front of the heel. The spring heel lifts which aresecured to the heel portion of the shoe and define the gradation orincline at the break of the heel, however, are died out of the stock orsheet material by a cut ext-ending directly from one surface to theother, and the lifts present substantially uniform thickness about thecontour and breast or straight edge portions thereof. To secure thegradual incline along the break of the heel, the breast or straight edgeportion of the spring heel lifts is trimmed or given a bevel more orless emphasized in accordance with the degree of inclination desired,and since such spring heel lifts are usually secured between the heelseat of the shoe and heel portion of the outersole, the bevel or wedgeshape extends from a line well back of the breast edge at one surface toa line at or close to the edge of the breast at the opposite surface, toavoid the existence of any opening or recess at the beveled edge of thelift due to the configuration of the outersole at the break of the heel.In some cases one or more spring lifts may be emloyed and in otherinstances one or more of such lifts may be secured to the heel portionoutside the outersole, but in any event the bevel or wedge inclineshould be in conformity with the spring character desired for the heel.The degree of bevel or incline to be given the breast edge of the springheel lift will depend upon several factors, amongst which may beinstanced the height or thickness of the lift, the particular spring orincline at the break of. the heel, size and style of shoe; andone objectof the present invention is to provide a simple and efficient machinewhereby any desired bevel or incline may be given the breast or straightedge portion of spring heel lifts.

An important feature. of the invention, therefore, consists in a novelconstruction of rest on which a spring heel lift may be clamped and thatis adjustable to different inclinations relative to the path of abeveling knife.

This feature of the invention may be variously contrived, but in thepresent. instance is carried into effect by a plate which is adjustablysecured to the machine frame and has projecting therefrom the springheel rest, the adjustment ofthe plate and, perforce, the spring heelrest, being about an axis passing transversely of the spring heel restapproximately at the line of contact between a spring lift and thesurface of the rest.

' Another important feature of the invention consists in a positioninglip on the rest against which the breast edge of the heel or heel liftabuts when in breasting position and a clamp constructed and arranged toapply pressure longitudinally to the heel to hold it against the lip atthe same time that it applies downward clamping pres.- su're to theheel. Preferably the lip has a substantially sharp upper edge whichextends slightly above the plane of the surface on which the heel orlift rests, said edge bcing in axial alinement with the'axis about whichthe plate is adjustable and concaved to conform to the knife face whichis next to the heel or lift, so that the knife cooperates with the saidedge in the various adjustments of the plate to effect a shearing cut atthe completion of its stroke. The rib or lip acts in addition to itscooperation with the knife to protect the lower edge of the breast faceof the heel by which it ispositioned so that no material is removedtherefrom. This results in a saving of stock since a heel of any sizewill have enough stock removed to form the desired bevel of its breastface and no more.

Another important feature of the inventrated to make cleartheconstruction, mode of operationofthe invention, and the'associ'ationthereof "with the co-acting parts. This '-'mae'hine may be -either-1nanually or power operated.

In the drawings:

Fig. 1 is aperspe'ctive view-of a machine embodying the presentinvention;

Fig.2 is a side view in detail with parts broken away showing-moreparticluarly the positioning lipl-and its relation tothe other parts.

The-'machinefframe 1 of suitable construction rises from a baseor'support, and is provided with a guide-way 2, of whichthere may 'betwoor more, for guidingthe reciproeating movements of'a knife carrying head3. 'The'headS may be reciprocated by any suitable means and to it issecured the'knife 4. Inthe'present instance of the invention the ,ihead3 has a bridge-piece 5, to which the knife 4 i's secured by means ofclamping bolts 6 which pass through the bridge 5 and c'lampzthe knife 4against abacking 7 carried by the head. '()vei'hanging the upperendofthe knife 4 is an abutment/'8 through which extend "the stop screws9 "adapted to bear uponthe upper edge of the knife, the constructionbeing such that by proper manipulation ofthe clamping screws '6 andadjusting screws 9,"the.knife 4 be ad-' justed and secured "in desiredposition relativefto the reciprocating head 3.

Adjustably' connected to the machine frame is the carrier or plate "forthe spring lift rest, which is adjustably secured to the frame to-provide "for varying inclinations of springheel lifts on the restrelative to the predetermined path of the knife. In thepresent instancethe carrier or plate '10 is ofgeneral dis'k form and is provided aboutits marginal'p'ortions withlslots 11 formed in the arc of a circle, thecentre of which is the axis about which the carrier'or plate 10 isadjustable. Passing through the curved slots 11 are the bolts 12 havingsuitable nuts and washers 13 for clamping the plate in position to whichit has been adjusted.

' Extending laterally from the face of the plate 10 is the spring heelrestl l. The rest 14 may be connected to the plate in appro- I priatemanner to withstand the cutting action 0f the knife, but in the presentinstance of the invention it is formed integral with the plate 10,thereby presenting a simple, cheap, and effective construction.

The supporting surface 15 i of the-rest 141- is preferably formedflatfor properly supportingone surface of aheel lift" mounted on therest, and in order to position the heel lifton therest, suitable guidesor gages may be employed. In the present instance, the spring heel lifta is shown as formed of four piecesand is positioned upon the rest 14 bymeans of side gages 17, a breast beveling'lip 14: and an end gage '16.The gage 16 may be of the usual character employed in positioning liftsupon their supports; and adapted to engage the rear contour portion ofthe lifts, while the sidegages 17 may be which the plate 10 isadjustableand also in.

the plane of the adj acent face of the knife and theknife edge so thatthe knife cooperates with the edge of the lip in effecting a shearingout upon the heel.

The carrier or plate 10 has mounted thereon a clamp-for engaging theexposed surface of'the spring heel lift and clamping it upon the rest.In the present instance of the-invention the plate 10 has a portion 20provided with a slot 21 through which passes the bolt 22 whichconstitutes the axis about which the clamp 23 may rock. The clamp 23 hasa sleeve portion 24; and an eccentric or clamping section '25 whichengages the exposed surface of'the spring heel lift on the rest. Theclampis adjustable .on the carrier or plate 10 to different positionstowards and from the surface of the rest, and in the present instancesuch adjustment is varied by the slot 21 through which the bolt 22passes, the head of the bolt'taking into'the guides 26 at the back oftheslot, the construction being such that by loosening the nut 27 theclamp'may be adjusted in the slot 21 and then secured in adjustedposition.

Extending fromthe-cla-mp is an operat-' ing arm 28 which is normallyunder the in fluence of a spring 29 tending to move the clamp intounclamping position. In the illustrated instance the spring 29 has oneend 30 secured to the operating arm 28 and the other end 31secured to apin 32 mounted on the machine frame, the construction being such thatthe impulse of the spring 29 tends normally to throw the clamp intounclamping position. Secured to the operating arm 28 is a rod 33 whichmay be actuated by any suitable means, one good form of which may be atreadle, not shown. When the clamp is operated to clamp the heel thefrictional engagement of the portion 25 of the clamp with the heel willforce the heel towards the lip 14 and cause engagement of the lower edgeof the heel breast with the lip throughout its extent before the saidportion begins to slip upon the heel to apply clamping pressure to theheel to hold it in position for the action of the knife.

The position of the rest 14L relative to the carrier or plate 10 is suchthat when a spring heel lift is mountedon the rest, its breast will bein the axis of adjustment of the plate 10. This axis thus passestransversely of the rest 14: and substantially along the line of contactbetween the surface of the rest and the breast edge of the liftsupported by the rest, or more particularly along the upper edge of thelip 14, the effect being that when the plate and rest are adjusted todifferent positions of inclination about the axis, the cutting operationof the knife 4 will commence its beveling or Wedge-shaping out Well backof the exposed edge of the spring heel lift and terminate its cuttingaction adj acent the line of contact between the surface of the springheel lift and rest, or more particularly along the edge of the lip 14.Since the clamp for securing the lift upon the rest is mounted on thecarrier or plate 10, it maintains its position relative to the rest asthe plate and rest are adjusted'to change the inclination or plane ofcut, and the adjustable connection between the plate or carrier 10 andthe clamp provides a ready means for accommodating the machine for thetreatment of spring heel lifts of different height or thickness.

Having described my invention what I claim as new and desire to secureby Letters Patent of the United States is:

1, In a machine for making spring heel Wedges, the combination of aknife movable in a predetermined path, a rest for supporting spring heellifts for the action of the knife and having a fixed lip to position thebreast of the lift, the rest being adjustable about an axis passingtransversely of the rest'along that edge of the lip whichis more distantfrom the rest, and means for clamping the spring heel lift on the rest.

2. In a machine for beveling the breast edge of a spring heel lift, thecombination of a knife movable in a predetermined path, a rest forsupporting a spring heel lift for the action of the knife, means foradjustably connecting the rest to the machine frame for movement aboutan axis passing transversely of the rest through the line of cut made bythe knife, and a clamp carried by the rest for engaging the uppersurface of the spring heel lift and clamping it upon the rest in anyposition of rest adjustment, said clamp having a movement lengthwise ofthe heel while in engagement with the heel.

3. In a machine for making spring heel wedges, the combination of aknife movable in a predetermined path, a rest for supporting spring heelliftsfor the action of. the knife, a fixed lip for positioning thespring heel lift on the rest, the rest being adjustable about an axispassing transversely of the rest along the free edge of the lip, andmeans for clamping the spring heel lift against the lip and on the rest.

4. In a machine for beveling the breast edge'of a spring heel lift, thecombination of a knife movable in a predetermined path, a rest forsupporting a spring heel lift for the action of the knife, means foradjustably conneoting'the rest to the machine frame for varying theinclination of the spring heel lift relative to the path of the knifethat the bevel given to the breast edge of the lift may be given a wedgeform in substantial accordance with the inclination at the break of theheel,.anda clamp carried by said rest and constructed and arranged to bemanually operated relatively thereto for engaging the top surface of thespring heel lifton the rest in any inclination of its adjustment and forclamping the heel on the rest, said clamp being arranged to apply acomponent of clamping pressure lengthwise of the heel.

5. In a machine for beveling the breast edge of a spring heel lift, thecombination of a knife movable in a predetermined path, a plate carryinga rest for supporting one surface of a spring heel lift, means forconnecting the plate to the machine frame for adjustment about an axispassing transversely of the rest along the breast line of a spring heellift on the rest, a cam-shaped clamp pivoted on and adjustable with theplate for engaging the opposite surface of the spring heel lift in anyposition of inclination of the rest, and means for operating the clamppositively to clamp the heel on the rest.

6. In a machine for beveling the breast edge of a spring heel lift, thecombination of a knife movable in a predetermined path, a stationaryrest for supporting a spring heel lift, for the action of the knife,means for adj ustably connecting the rest to the machine frame forvarying the inclination of the spring heel lift relative to the path ofthe knife that the bevel given to the breast edge of the lift may begiven a wedge form in substantial accordance with the inclination at thebreak of the heel, and a swinging clamp carried by said rest forengaging the exposed surface of spring heel lifts of a the lip to beunaffected by the knife, and a clamp acting to force the heel againstthe lip.

17. In a machine for beveling spring heels, the combination of a knifemovable in a fixed path, a heel rest inclined to the path of the knifeand having a rigid lip thereon arranged on the sideof the knife towardthe heel and serving to position the breast portion of the heelrelatively to the knife so that the portion not engaged by the lip willbe removed by the action of the knife and the relatively small portionof the breast protected by the lip will be unaffected, and a manuallyoperated clamp acting to force the heel against the lip and hold it inposition during the action of the knife. I

In testimony whereof I have signed my name to this specification.

THOMAS LUND.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,477,574, grantedDecember 18, 1923, upon the application of Thomas Land, of Beverly,Massachusetts, for an improvement in Heel-Breasting Machines, an errorappears in the printed specification requiring correction as follows:Page 4-, line 112, claim 15, strike out the Words axle on. an and insertinstead the word arc is; and that the said Letters Patent should be readWith this correction therein that the same may conform to the record ofthe case in the Patent Office.

Signed and sealed this 1st day of April, A. D. 1924:.

[SEAL] KARL FENNING,

Acting Commissioner of Patents.

